TDV10 Type Vacuum Circuit Breaker Electromagnetic Operating Mechanism Design

TDV10 upright type vacuum circuit breaker is mainly used for electric locomotive running in the process of main circuit disconnection and connection, and also applied in the overload protection and short circuit protection.And TDV10 type operating mechanism is pneumatic, pneumatic structure because of its complex structure, cylinder work noise, air leakage risk, now a electromagnetic operating mechanism is designed to replace the pneumatic institution.TDV10 type circuit breaker through analysis the principle and performance parameters of the comparison, put forward the feasibility in theory, and gives the basic design of the electromagnetic mechanism and external circuit.Using Ansoft software design agency for static and dynamic simulation analysis of magnetic field. Through the analysis and comparison of the curve of each parameter, verify the feasibility of the design.

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Dependence of Short Circuit Breaking Current on its Minimum Arcing Times of a Fast Vacuum Circuit Breaker

10.1109/isdeiv46977.2021.9587029 ◽

2021 ◽

Author(s):

Chen Guan ◽

Xiaofei Yao ◽

Weidong Wang ◽

Ran Zhang ◽

Luyang Zhang ◽

...

Keyword(s):

Short Circuit ◽

Circuit Breaker ◽

Vacuum Circuit Breaker

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Improving the cam profile of the spring operating mechanism of vacuum circuit breaker based on energy matching

Journal of Physics Conference Series ◽

10.1088/1742-6596/1983/1/012082 ◽

2021 ◽

Vol 1983 (1) ◽

pp. 012082

Author(s):

Fuqiang Li ◽

Shufen Wang ◽

Yuguang Li ◽

Zhenzhen Sun

Keyword(s):

Circuit Breaker ◽

Operating Mechanism ◽

Vacuum Circuit Breaker ◽

Cam Profile

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Static Voltage Sharing Design of a Sextuple-Break 363 kV Vacuum Circuit Breaker

Energies ◽

10.3390/en12132512 ◽

2019 ◽

Vol 12 (13) ◽

pp. 2512 ◽

Cited By ~ 1

Author(s):

Xiao Yu ◽

Fan Yang ◽

Xing Li ◽

Shaogui Ai ◽

Yongning Huang ◽

...

Keyword(s):

Electric Field ◽

Circuit Simulation ◽

Short Circuit ◽

Circuit Breaker ◽

Normal Operation ◽

Parallel Structure ◽

Voltage Distribution ◽

Fem Model ◽

Vacuum Circuit Breaker ◽

A Minor

A balanced voltage distribution for each break is required for normal operation of a multi-break vacuum circuit breaker (VCB) This paper presented a novel 363 kV/5000 A/63 kA sextuple-break VCB with a series-parallel structure. To determine the static voltage distribution of each break, a 3D finite element method (FEM) model was established to calculate the voltage distribution and the electric field of each break at the fully open state. Our results showed that the applied voltage was unevenly distributed at each break, and that the first break shared the most voltage, about 86.3%. The maximum electric field of the first break was 18.9 kV/mm, which contributed to the reduction of the breaking capacity. The distributed and stray capacitance parameters of the proposed structure were calculated based on the FEM model. According to the distributed capacitance parameters, the equivalent circuit simulation model of the static voltage distribution of this 363 kV VCB was established in PSCAD. Subsequently, the influence of the grading capacitor on the voltage distribution of each break was investigated, and the best value of the grading capacitors for the 363 kV sextuple-break VCB was confirmed to be 10 nF. Finally, the breaking tests of a single-phase unit was conducted both in a minor loop and a major loop. The 363 kV VCB prototype broke both the 63 kA and the 80 kA short circuit currents successfully, which confirmed the validity of the voltage sharing design.

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